Temperatuur — 2020
| Month | Westerlo | Olen | Difference |
|---|---|---|---|
| Jan | 5.9 °C | 6 °C | -0.1 |
| Feb | 7.2 °C | 7.3 °C | -0.1 |
| Mar | 7.2 °C | 7.1 °C | +0.1 |
| Apr | 12.3 °C | 12.2 °C | +0.1 |
| May | 14 °C | 14.1 °C | -0.1 |
| Jun | 17.7 °C | 17.8 °C | -0.1 |
| Jul | 17.7 °C | 17.6 °C | +0.1 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |